A magnetic control locking buckle mechanism for shaft parts

Abstract

The utility model relates to a kind of magnetic control lock catch mechanism for shaft parts, including lock catch and unlocking part, the lock catch includes shell, base, steel ball limit ring, spring limit ring, steel ball support, steel ball, spring, magnetic attraction plate, steel ball limit ring, spring limit ring are sequentially installed from front to back in base interior, steel ball limit ring inside is equipped with tapered hole, steel ball support front part installs steel ball, steel ball support center is equipped with the mounting hole for the shaft part to extend into, tapered hole can be against steel ball radial movement and extend into mounting hole, spring is installed in the outer circumferential side of steel ball support rear part, spring front end is against steel ball support and rear end is against spring limit ring, steel ball support rear part extends out spring limit ring and is fixedly connected with magnetic attraction plate after, the unlocking part includes magnet and magnet mounting block, magnet is installed in magnet mounting block, unlocking part can drive magnetic attraction plate axial movement and unlock after being attracted by magnet to magnetic attraction plate, structure design is ingenious, without direct contact unlocking.

Description

Technical Field

[0001] This utility model relates to the field of locking fixtures, specifically to a magnetic locking mechanism for shaft-type parts. Background Technology

[0002] In existing technologies, locking mechanisms for shaft parts generally suffer from complex structures and cumbersome operations. Existing mechanisms mostly rely on manual tightening or complex mechanical linkages to achieve locking, such as using a nut and washer to prevent reverse rotation. Unlocking requires overcoming significant frictional resistance, and some designs even require disassembling multiple components to complete the operation. This is not only time-consuming and labor-intensive, but also prone to causing a decrease in shaft end precision or wear of parts due to repeated disassembly and assembly. Utility Model Content

[0003] To address the aforementioned shortcomings of existing technologies, this utility model provides a magnetic locking mechanism for shaft-type parts. The mechanism features a simple structure and cleverly utilizes the principle of magnetic attraction, eliminating the need for direct contact. The specific technical solution is as follows:

[0004] A magnetic locking mechanism for shaft-type parts includes a locking component and an unlocking component. The locking component includes a housing, a base, a ball-limiting ring, a spring-limiting ring, a ball-support, a ball, a spring, and a magnetic plate. The base is installed inside the housing. The ball-limiting ring and the spring-limiting ring are installed sequentially from front to back inside the base. The ball-limiting ring has a conical hole inside. The ball-support is movably fitted inside the ball-limiting ring and the spring-limiting ring. A ball is installed at the front of the ball-support. There are multiple balls arranged circumferentially around the central axis of the ball-support. The center of the ball-support has an installation hole for the shaft-type parts to extend into. The conical hole can be pushed by the ball to move radially into the installation hole. A spring is installed on the outer periphery of the rear part of the ball-support. The front end of the spring pushes against the ball-support and the rear end pushes against the spring-limiting ring. The rear part of the ball-support extends out of the spring-limiting ring and is fixedly connected to the magnetic plate. The unlocking component includes a magnet and a magnet mounting block. The magnet is installed in the magnet mounting block. After the unlocking component attracts the magnetic plate with the magnet, it can drive the magnetic plate to move axially to unlock.

[0005] In a preferred embodiment of this utility model, the front part of the steel ball support is a large cylinder, and the rear part of the steel ball support is a small cylinder. The outer diameter of the large cylinder is larger than that of the small cylinder. The large cylinder is provided with multiple steel ball mounting holes for mounting steel balls. The inner diameter of the steel ball mounting holes is larger than that of the steel balls. A steel ball limiting hole is provided at the bottom of the steel ball mounting holes. The inner diameter of the steel ball limiting hole is smaller than that of the outer diameter of the steel balls.

[0006] As a preferred embodiment of this utility model, the small cylinder extends out of the spring limiting ring and is then fixedly connected to the magnetic suction plate by screws.

[0007] As a preferred embodiment of this utility model, the base is provided with a cavity for the axial movement of the magnetic plate.

[0008] As a preferred embodiment of this utility model, the magnetic plate is made of ferromagnetic material.

[0009] As a preferred embodiment of this utility model, when the magnetic plate moves axially backward, the magnetic plate drives the steel ball support and the steel ball to move backward, the tapered hole no longer presses against the steel ball, and the shaft-type parts can be moved out from the mounting hole.

[0010] Beneficial effects: When the magnetic locking mechanism for shaft parts is engaged, the shaft part is inserted into the mounting hole, and the front end of the shaft part first contacts the steel ball and squeezes the steel ball to move radially outward. Because the inner hole of the steel ball limiting ring is a conical hole, the steel ball, along with the steel ball bracket, moves backward under the push of the shaft part to avoid the shaft part, allowing the shaft part to be smoothly inserted into the bottom of the steel ball bracket. At the same time, when the pressing pressure is released, the steel ball bracket moves forward under the action of the return spring, and the conical hole can push against the steel ball and move radially into the mounting hole, resulting in a state of close contact between the steel ball and the shaft part. When unlocking is required, the unlocking component is attracted by the magnet and the magnetic suction plate moves backward. When the magnetic suction plate moves axially backward, it drives the steel ball bracket and the steel ball to move backward. The conical hole no longer pushes against the steel ball, and the shaft part can be smoothly pulled out from the steel ball bracket. The structure is ingeniously designed and does not require direct contact for unlocking. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present invention;

[0012] Figure 2 This is a cross-sectional view of the present invention;

[0013] Figure 3 This is an exploded view of the present invention. Detailed Implementation

[0014] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0015] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0017] like Figures 1-3 As shown, a magnetic locking mechanism for shaft-type parts includes a locking component A and an unlocking component B. The locking component A includes a housing 1, a base 2, a steel ball limiting ring 3, a spring limiting ring 4, a steel ball bracket 5, steel balls 6, a spring 7, and a magnetic suction plate 8. The base 2 is installed inside the housing 1. The steel ball limiting ring 3 and the spring limiting ring 4 are installed sequentially from front to back inside the base 2. The steel ball limiting ring 3 has a conical hole 31 inside. The steel ball bracket 5 is movably fitted inside the steel ball limiting ring 3 and the spring limiting ring 4. Steel balls 6 are installed at the front of the steel ball bracket 5. There are multiple steel balls 6, which are arranged circumferentially around the central axis of the steel ball bracket 5. In this embodiment, the steel balls 6 are arranged in a circular pattern. The ball 6 preferably has 3 balls. The center of the ball support 5 is provided with a mounting hole 51 for the shaft part C to extend into. The tapered hole 31 can push against the ball 6, causing the ball 6 to move radially into the mounting hole 51 and thus rub against the shaft part C. A spring 7 is installed on the outer periphery of the rear part of the ball support 5. The front end of the spring 7 pushes against the ball support 5 and the rear end pushes against the spring limiting ring 4. After the rear part of the ball support 5 extends out of the spring limiting ring 4, it is fixedly connected to the magnetic suction plate 8. The unlocking component B includes a magnet 9 and a magnet mounting block 10. The magnet 9 is installed in the magnet mounting block 10. After the unlocking component B attracts the magnetic suction plate 8 with the magnet, it can drive the magnetic suction plate 8 to move axially to unlock.

[0018] Specifically, the front part of the steel ball support is a large cylinder 52, and the rear part of the steel ball support is a small cylinder 53. The outer diameter of the large cylinder 52 is larger than the outer diameter of the small cylinder 53. The front end of the spring 7 presses against the large cylinder 52. The large cylinder 53 is provided with multiple steel ball mounting holes 54 for installing steel balls 6. The inner diameter of the steel ball mounting holes 54 is larger than that of the steel balls 6 so that the steel balls can be inserted. The bottom of the steel ball mounting holes 54 is provided with steel ball limiting holes 55. The inner diameter of the steel ball limiting holes 54 is smaller than that of the outer diameter of the steel balls 6 to ensure that the steel balls 6 will not fall completely into the mounting holes 51.

[0019] Specifically, after the small cylinder 53 extends out of the spring limiting ring 4, it is fixedly connected to the magnetic suction plate 8 by screw 11. The base 2 has a cavity 21 for the axial movement of the magnetic suction plate 8. The magnetic suction plate 8 is made of ferromagnetic material. When the magnetic suction plate 8 moves axially backward, it drives the steel ball bracket 5 and the steel ball 6 to move backward. The tapered hole 31 no longer presses against the steel ball 6, and the shaft part C can be removed from the mounting hole.

[0020] When the unlocking mechanism is not used, when the shaft part is pulled out of the inner hole of the steel ball bracket 5, the shaft part C drives the steel ball 6 to move outward along the axis under the action of friction. Because the inner hole of the steel ball limiting ring 3 is a conical structure, it gradually becomes smaller in the direction of movement of the steel ball 6. After the shaft part C is pulled out a certain distance, it will be held tighter and tighter by the three steel balls, and eventually it will be unable to be pulled out again, and the locking structure is stable.

[0021] The above description is a further detailed explanation of the present utility model in conjunction with specific preferred embodiments. It should not be considered that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the protection scope of the present utility model.

Claims

1. A magnetic locking mechanism for shaft-type parts, characterized in that: The device includes a locking mechanism and an unlocking mechanism. The locking mechanism comprises a housing, a base, a ball retaining ring, a spring retaining ring, a ball support, a ball, a spring, and a magnetic plate. The base is installed inside the housing. Inside the base, the ball retaining ring and the spring retaining ring are installed sequentially from front to back. The ball retaining ring has a conical hole inside. The ball support is movably fitted inside the ball retaining ring and the spring retaining ring. A ball is installed at the front of the ball support. There are multiple balls arranged circumferentially around the central axis of the ball support. The center of the ball support has an installation hole for shaft-like parts to extend into. The conical hole can push the ball radially into the installation hole. A spring is installed on the outer periphery of the rear part of the ball support. The front end of the spring pushes against the ball support and the rear end pushes against the spring retaining ring. The rear part of the ball support extends out of the spring retaining ring and is fixedly connected to the magnetic plate. The unlocking mechanism includes a magnet and a magnet mounting block. The magnet is installed in the magnet mounting block. After the magnetic plate is attracted by the magnet, the unlocking mechanism can drive the magnetic plate to move axially to unlock it.

2. The magnetic locking mechanism for shaft-type parts according to claim 1, characterized in that: The front part of the steel ball support is a large cylinder, and the rear part of the steel ball support is a small cylinder. The outer diameter of the large cylinder is larger than that of the small cylinder. The large cylinder has multiple steel ball mounting holes for installing steel balls. The inner diameter of the steel ball mounting holes is larger than that of the steel balls. The bottom of the steel ball mounting holes has steel ball limiting holes. The inner diameter of the steel ball limiting holes is smaller than that of the steel balls.

3. A magnetic locking mechanism for shaft-type parts according to claim 2, characterized in that: The small cylinder extends out of the spring limiting ring and is then fixedly connected to the magnetic suction plate by screws.

4. A magnetic locking mechanism for shaft-type parts according to claim 1 or 3, characterized in that: The base has an internal cavity for the axial movement of the magnetic plate.

5. A magnetic locking mechanism for shaft-type parts according to claim 1, characterized in that: The magnetic plate is made of ferromagnetic material.

6. A magnetic locking mechanism for shaft-type parts according to claim 1 or 5, characterized in that: When the magnetic plate moves axially backward, it drives the steel ball support and the steel ball to move backward. The tapered hole no longer presses against the steel ball, and the shaft-type parts can be removed from the mounting hole.

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